Illustrated hand book of James Leffel's improved double turbine water wheel for 1885 and 1886. For particulars, apply to James Leffel & Co., manufacturers, Springfield, Ohio, and .. New York City
Illustrated hand book of James Leffel's improved double turbine water wheel for 1885 and 1886. For particulars, apply to James Leffel & Co., manufacturers, Springfield, Ohio, and .. New York City